Mitsubishi Workshop Service and Repair Manuals

Tires: Testing and Inspection
Tire Wear Check

TIRE WEAR CHECK 

Measure the tread depth of
Limit: 1.6 mm (0.06 inch) 
If the remaining tread depth is less than the limit, replace the tire.

NOTE:  When the tread depth of tires is reduced to 1.6 mm (0.06 inch) or less, wear indicators will appear.